Short description

Under category 1.A.3.d ii - National Navigation emissions from national navigation are reported.

NFR-Code

Name of Category

Method

AD

EF

Key Source for (by1)

1.A.3.d ii

National Navigation (Shipping)

T1

NS

CS, D

no key source

1 T = key source by Trend / L = key source by Level

Since there is no data available on ship movements (origin, destination) all inland navigation is supposed to be domestic. (See also: origin of activity data)

Method

For Germany, emissions from navigation are calculated as the product of consumed fuels and country-specific emission factors and thus following a tier 1 approach.

Activity data

The total consumptions of diesel oil and biodiesel have been taken from the National Energy Balances (AGEB, 2011) [1]. For comparison (especially recent years), official mineral-oil data of the Federal Office of Economics and Export Control (BAFA, 2011) [2] and sales data of the Association of the German Petroleum Industry (MWV, 2011) [3] are used, too.

Data on the consumption of biodiesel is provided in the German Energy Balances from 2004 onward. In past years, the Energy Balances did not provide a solid time series regarding most recent years. Here, AD was estimated based on the prescribed shares of biodiesel to be added to diesel oil. With the Energy Balance 2009 this problem seems to be solved.

Emission factors

The EF used for emission estimations in sector 1.A.3.d ii - National Navigation (Shipping) are of very different quality: For NOx, NMVOC, CO, SO2, and PM annually changing tier2 values computed within the TREMOD model are used, representing the development of German railway fleet, fuel quality and mitigation technologies. On the other hand, constant tier1 EF are used for NH3, PAHs & PCDD/F (EF from UBA study) as well as all heavy metals, HCB and PCBs (EF from EMEP Guidebook).

Emission factors used for 2010 estimates

Main Pollutants1

Particulate Matter1

Heavy Metals 2, 3

Persistent Organis Pollutants 1

NEC

Other

PM2.5 ≤ PM10 ≤ TSP

Main HM

Other HM

Polycyclic Aromatic Hydrocarbons 4

Dioxins & Furans 4

Hexachlo- robenzene

Polychlorinated biphenyls

Pollutant

NH3

NMVOC

NOx

SO2

CO

PM2.5

PM10

TSP

Pb

Cd

Hg

As

Cr

Cu

Ni

Se

Zn

B[a]P

B[b]F

B[k]F

I[1,2,3-cd]P

∑PAH

PCDD/F

HCB 2

PCBs 2

Unit

kg/TJ

kg/TJ

g/TJ

mg/TJ

µg/TJ

mg/TJ

Diesel Oil

0.40

97

1,313

47

237

42

42

42

3.03

0.23

0.70

0.93

1.16

20.48

23.28

2.33

27.93

698

IE5

IE5

IE5

930

93

1.86 2

8.85 2

Biodiesel

0.40

97

1,313

47

237

42

42

42

NE

NE

NE

NE

NE

NE

NE

NE

NE

698

IE5

IE5

IE5

930

93

1.86 2

8.85 2

1 biodiesel: due to lack of better information: similar EF as for diesel oil2 Tier1 default EF from EMEP/EEA Emission Inventory Guidebook 20093 assumption: no HM emitted from biodiesel4 EF from UBA study5 included in EF(∑PAH)

Particulate matter (PM2.5, PM10, and TSP)

As for all reported exhaust PM emissions from mobile diesel vehicles, the inventory compiler assumes that nearly all particles emitted are within the PM2.5 range, resulting in similar emission values for PM2.5, PM10, and TSP.

Recalculations

Compared to submission 2011, emission estimates had to be racalculated due to both corrected activity data and new/revised emission factors.

AD: The provisional Energy Balance 2009 was replaced by a revised version resulting in updated activity data for diesel oil used in national navigation. Another but slight correction was carried out for 2007, where the value for diesel oil calculated from BAFA information was replaced by AGEB data. - In addition, the 2009 biodiesel consumption was recalculated within TREMOD representing current national circumstances.

EF: As mentioned above, recalculations were also necessary due to updated or newly included emission factors. Here, the EFs for NOx was adapted to TREMOD whereas for the EFs for NMVOC and CO a rounding error was solved resulting in very slight changes. - Furthermore, the EFs for Cu, Hg, and Ni were corrected for the entire time series and new EFs for Pb, As, HCB, and PCBs were included both based on information from the final version of the 2009 EMEP/EEA Emission Inventory Guidebook.

Table: Revised emission factors

Unit

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

Non-methane volatile organic compounds - NMVOC

Submission 2012

[kg/TJ]

107.90

106.80

105.60

104.50

103.40

102.20

101.10

100.00

98.800

97.70

96.56

96.56

96.56

96.56

96.56

Submission 2011

[kg/TJ]

107.90

106.80

105.60

104.50

103.40

102.20

101.10

100.00

98.800

97.70

96.60

96.60

96.60

96.60

96.60

absolute change

[kg/TJ]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-0.05

-0.05

-0.05

-0.05

-0.05

relative change

[%]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-0.05

-0.05

-0.05

-0.05

-0.05

Nitrogen oxides - NOx

Submission 2012

[kg/TJ]

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,380

1,363

1,346

1,330

Submission 2011

[kg/TJ]

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,397

1,380

1,363

1,363

1,363

absolute change

[kg/TJ]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-16.74

-33.50

relative change

[%]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-1.23

-2.46

Carbon monoxide - CO

Submission 2012

[kg/TJ]

265.40

262.60

259.80

257.00

254.20

251.40

248.60

245.80

243.00

240.20

237.43

237.43

237.43

237.43

237.43

Submission 2011

[kg/TJ]

265.40

262.60

259.80

257.00

254.20

251.40

248.60

245.80

243.00

240.20

237.40

237.40

237.40

237.40

237.40

absolute change

[kg/TJ]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.03

0.03

0.03

0.03

0.03

relative change

[%]

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.01

0.01

0.01

0.01

For information on the impacts on 1990 and 2009 emission estimates, please see the pollutant specific recalculation tables following chapter 11.1 - Recalculations.

Uncertainty estimates for emission factors were compiled during the PAREST research project. Here, the final report has not yet been published.

Planned improvements

At the moment, a research project investigates the usability and availability of ship specific engine and movement data in order to fundamentally revise the inventory for Maritime Navigation with results possibly influencing sub-category 1.A.3.d.ii as well.